Figure 15.

(a) A patch where WSS errors are computed in reference to the highest polynomial order simulation (p = 10) or the finest mesh with higher order (p = 6). Shading on the patch in the upstream aneurysm represents the x component of WSS vector at the systolic peak. (b) Plot of WSS L₂ error at the patch, which covers the upstream aneurysm walls, versus the largest edge length. (c) Plot of WSS L₂ error versus the number of elements. (d) The spectra at a history point inside the upstream aneurysm at different meshes. (e) Velocity–time traces at history point pt 1 inside the upstream aneurysm from four simulations with different polynomial order p = 4, 6, 8, and 10. (f) Velocity–time traces at history point pt 10 inside the downstream aneurysm from four simulations with different polynomial order p = 4, 6, 8, and 10. The differences between them, however, are not visually discernible. (g) p-convergence of L₂ error in WSS at the patch, which covers the upstream aneurysm walls, shown on the left during the time interval indicated with a grey box in figure 6. (h) L₂ error of pointwise velocity at several history points shows spectral (exponential) convergence. (d) Square solid line, 80 000; triangle solid line, 103 000; inverted triangle solid line, 120 000; solid line, reference (h) Square solid line, pt 1; triangle solid line, pt 2; square dashed line, pt 4; diagonal triangle dashed line, pt 6; diamond dashed line, pt 9; circle dashed line, pt 10.